Support raw documents "visualization" in a dashboard

[peterskim12]

It'd be nice to have a panel/visualization available to put in the dashboard which displayed the raw documents. Essentially be able to put this view from the Discover tab:

into a dashboard. I think it's critical for certain use cases for someone to be able to search and drill down in a dashboard, then expect to be able to look at the underlying raw records that match the current search+filter state.

[rashidkpc]

Duplicate of #2024